EP2948661B1 - Rückstelleinheit, insbesondere für eine brennkraftmaschine - Google Patents

Rückstelleinheit, insbesondere für eine brennkraftmaschine Download PDF

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Publication number
EP2948661B1
EP2948661B1 EP14701103.5A EP14701103A EP2948661B1 EP 2948661 B1 EP2948661 B1 EP 2948661B1 EP 14701103 A EP14701103 A EP 14701103A EP 2948661 B1 EP2948661 B1 EP 2948661B1
Authority
EP
European Patent Office
Prior art keywords
bearing
unit
console
restoring
dome
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14701103.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2948661A1 (de
Inventor
Burkhardt Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2948661A1 publication Critical patent/EP2948661A1/de
Application granted granted Critical
Publication of EP2948661B1 publication Critical patent/EP2948661B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F02B37/186—Arrangements of actuators or linkage for bypass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0269—Throttle closing springs; Acting of throttle closing springs on the throttle shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y10T137/6031—Assembling or disassembling rotary valve

Definitions

  • the present invention relates to a reset unit, in particular for an internal combustion engine of a motor vehicle, as well as an internal combustion engine with such a reset unit.
  • Conventional reset units are used, for example, in intake devices of internal combustion engines for motor vehicles or in exhaust gas turbochargers of motor vehicles when a suction port or a wastegate bypass in the exhaust gas turbocharger is to be selectively opened or closed by means of a rotatable flap.
  • a flap device can be controlled by means of a drive unit, for example an electric motor or the like.
  • the drive unit In the event that the drive unit is not active, it is often desirable that the flap of the flap device is automatically moved to a predetermined position in which the aspirator or the bypass valve is closed, for example.
  • the flap of the flap device In the event that the drive unit is not active, it is often desirable that the flap of the flap device is automatically moved to a predetermined position in which the aspirator or the bypass valve is closed, for example.
  • the DE 10 2010 020 579 A1 describes a pneumatic actuator with a housing whose internal volume is divided by a membrane into a first and second chamber.
  • the membranes are fixed in position radially on the outside and fixed in position on an axially movable plunger guided in the housing.
  • the plunger is axially displaceable at an unequal pressure between the two chambers.
  • a spring element is arranged in the axial direction of the plunger and supported on both sides. This spring element serves to return the plunger to a predetermined starting position.
  • the present invention addresses the problem of providing an improved embodiment for a reset unit, which is characterized by a simple mechanical structure, in particular with a small number of components.
  • the basic idea of the invention is therefore to design a reset unit of the type mentioned above from only three components.
  • the reset unit according to the invention comprises a reset console, which has a substantially cylindrical bearing dome. Furthermore, the reset unit comprises, as a second component, a first bearing unit, which has a first receiving opening, into which the bearing dome can be inserted or inserted rotatably. Finally, the reset unit comprises a third component as a spring element, which is at least partially disposed on an outer peripheral surface of the bearing dome and which biases the reset console against the first bearing unit.
  • a flap device for example an intake module of an internal combustion engine, can be attached in a torque-proof manner to the bearing dome so that the flap device can be turned by turning the reset console including the bearing dome. In this way, an effective opening cross-section of a suction opening, which can be closed with the flap device, can be adjusted.
  • this can be drive-connected, for example, with the drive unit.
  • a drive shaft of the electric motor rotatably connected to the bearing dome of the reset console.
  • the reset console In the event that no torque is applied to the reset console by the drive unit, the reset console is in a first predetermined position due to the bias generated by the spring element.
  • the reset console By means of a provided on the bearing unit at a suitable location mechanical stop the reset console can thus be easily held in the first predetermined position when the reset console is pressed by means of the spring element against this provided on the bearing unit stop.
  • this first predetermined position can simultaneously correspond to a position of the flap attached to the bearing dome, in which it completely closes a suction opening of the suction module.
  • a suction device is automatically closed, for example, in case of failure of the actuator by means of the reset unit according to the invention. This avoids that the reset console is in an undefined position in case of failure of the actuator.
  • a spring force of the spring element counteracting drive torque.
  • a (equilibrium) position of the reset console deviating from the first predetermined position can thus be set.
  • the reset console is due the bias of the spring element automatically moves back to the first predetermined position.
  • the reset unit according to the invention consists essentially of only three different components, namely reset console, bearing unit and spring element, it can be produced in a simple and thus cost-effective manner. Due to the small number of components, the reset unit according to the invention also has a particularly high reliability and is therefore particularly suitable for use in an internal combustion engine or in an exhaust gas turbocharger of a motor vehicle.
  • the bearing dome of the reset console is releasably inserted or inserted into the first receiving opening by means of a clip connection. This allows a particularly simple installation of the reset unit after the spring element has been placed or plugged onto the bearing dome of the reset console.
  • a clip connection allows a mechanically stable fixing of the reset console to the bearing unit with respect to an axial direction of the bearing dome, wherein the connection can be easily released again if necessary, for example for maintenance purposes or the like.
  • the clip connection of the restoring unit according to the invention on one of the two joining partners movable elements and on the other joining partner on a recording are preferably arranged.
  • the receptacle may be formed as a shoulder, which is preferably encompassed by the movable element in the axial and radial directions.
  • the clip connection further comprises a radial passage slot which is provided on a first receiving side facing the first end face of the bearing dome.
  • the bearing dome of the reset console according to the invention has in addition to the outer peripheral surface of a console bearing surface.
  • the console bearing surface can connect directly or indirectly to the outer peripheral surface in the axial direction.
  • Said console bearing surface can form a lateral surface of a cylinder with a circular cross section.
  • the outer peripheral surface may also enclose a cylinder of circular cross section.
  • the outer peripheral surface may also enclose a cylinder having a polygonal cross-section, in particular a pentagonal or hexagonal cross-section.
  • the first bearing unit in the assembled state of the reset console, is arranged between the clip connection and the spring element. Furthermore, the spring element is biased in the axial direction by compression, wherein both axial ends of the spring element abut the adjacent components. Thus, the reset console is held by the spring element in the axial direction without play in the first storage unit.
  • the passage slot is arranged in the region of the console bearing surface.
  • the storage area of the reset console simultaneously forms the mounting area.
  • a ring-shaped stop is arranged between the console bearing surface and the outer circumferential surface, which limits the penetration of the bearing dome into the first receiving opening.
  • the stop is arranged so that the resilient elements of the clip connection can spring into the locking position.
  • the axial length of the console bearing surface, between the stop and the movable part of the clip connection is slightly larger than the axial length of the first receiving opening.
  • the passage slot may comprise a locking element, in particular a detent, for releasably securing the return console in the first receiving opening.
  • a rotary shaft passage opening can be provided in the bearing dome be, in which a rotary shaft for rotationally fixed connection of the return bracket with a flap device at least partially and rotatably received or received.
  • the rotary shaft passage opening extends in an axial direction of the bearing dome.
  • a rotary shaft can be positively inserted and rotatably connected to the reset console.
  • Turning the reset console or the bearing dome then automatically has a corresponding rotational movement of a valve connected to the rotary shaft result.
  • the flap device is connected by means of the rotary shaft such that the flap device completely closes the opening of the suction module when the reset console is in the first predetermined position.
  • the rotary shaft passage opening may be formed as a square socket opening.
  • other geometric configurations are conceivable, which allow a rotationally fixed attachment of the rotary shaft on the bearing dome.
  • the spring element may be formed as a resilient torsion spring in a mounted in the reset unit state with a first end portion provided on the first bearing unit first stop portion and with a second end portion can be supported on a second stop provided on the bearing dome.
  • a receiving groove may be provided on the first bearing unit, in which the first end portion of the torsion spring for axial fixation is at least partially receivable or received.
  • the second stop may be formed as an extension projecting from the bearing dome in the axial direction of the return console.
  • the spring element must be plugged only on the bearing dome and the second end portion of the torsion spring to be brought to the projecting from the bearing dome extension to the plant.
  • a protective wall may be provided on the first bearing unit, which in a state of the reset unit mounted in an internal combustion engine acts as a catching device for parts falling away from the reset unit in the event of a malfunction. In this way, in the event that due to the error of the reset unit sloping parts of the reset unit leads to damage of the reset unit using the intake module or this intake module using internal combustion engine.
  • the restoring unit can also have a second, additional bearing unit, which supplements the bearing unit to form a bearing assembly and which has a second receiving opening for receiving the bearing dome.
  • the bearing dome is inserted in an assembled state in the region of its first end face in the first receiving opening of the bearing unit. In the region of its second end face, the bearing dome is inserted into the second receiving opening, so that the bearing dome is clamped between the first and second bearing unit forming the bearing assembly.
  • the provision of a clip connection or similar. for fixing the bearing dome in the first receiving opening is not essential.
  • the two storage units for example, by means of a suitable snap connection mechanically stable, but if necessary releasably connected to each other.
  • the bearing dome can be kept particularly mechanically stable. It makes sense that the rotary shaft for non-rotatably connecting the restoring console with the flap connection in the region of the second bearing unit, ie at the second end face of the bearing dome, is inserted into the rotary shaft through hole.
  • the invention further relates to an internal combustion engine for a motor vehicle with an intake device for sucking air into a combustion chamber of the internal combustion engine and with a reset unit with one or more of the aforementioned features.
  • a flap device is rotatably connected to the bearing dome of the reset unit, wherein by means of the flap device, a suction opening of the suction device between an open and a closed state is switchable.
  • FIG. 1 a reset unit according to the invention is shown in a non-assembled state and designated 1.
  • the FIG. 2 shows the reset unit 1 in an assembled state.
  • the reset unit 1 comprises a reset console 2 with a substantially cylindrical bearing dome 3.
  • the reset console 2 is shown in Figure 4 as a separate component.
  • the reset unit 1 further comprises a first bearing unit 4, which has a first receiving opening 5, in which the bearing dome 3 is rotatably inserted about an axial axis A.
  • the reset unit 1 also comprises a spring element 6, which is arranged at least partially on an outer circumferential surface 7 of the bearing dome 3.
  • the spring element 6 may be formed as a resilient torsion spring having a first end portion 8 and a second end portion 9.
  • a receiving groove 11 may be provided, in which the first end portion 8 of the torsion spring may be accommodated for axial fixing, which in the illustration of FIG. 3 is shown.
  • the torsion spring can be provided on a second stop 12 provided on the bearing dome 3 (cf. Fig. 1 ).
  • a radial passage slot 14 may be provided on a in the assembled state of the first receiving opening 5 facing first end face 13 of the bearing dome 3.
  • the radial passage slot 14 may form a latching element, in particular a latching lug, by means of which the reset console 2 can be releasably secured in the first receiving opening 5 of the first storage unit 4.
  • through slot 14 and the first receiving opening 5 form a kind of clip connection.
  • the reset console has a trained as a console bearing surface 25 area which is formed substantially cylindrical. Between the console bearing surface 25 and the bearing dome 3, a stop 26 is further arranged, which is designed as an annular step.
  • the axial length of the console bearing surface 25 is slightly larger in the example scenario of the figures than the axial extent of the first receiving opening 5. In this way, the reset console 2 can be securely inserted into the receiving opening 5 and latched to the first bearing unit 4.
  • the first bearing unit 4 can comprise a protective wall 15, which in a state of the restoring unit 1 mounted in an internal combustion engine for the latter as a collecting device for acting of the reset unit 1 in case of malfunction parts can act. In this way it should be prevented that such parts can damage other components of the internal combustion engine.
  • a rotary shaft passage opening 16 may be provided, in which a (in the FIG. 2 for reasons of clarity not shown) rotary shaft for non-rotatably connecting the return bracket 2 with a flap device is at least partially and rotatably receivable.
  • the rotary shaft passage opening 16 may, as in the FIG. 2 be shown formed as a square socket opening. In variants but also numerous other technical implementation options are conceivable, which allow a rotationally fixed fixation of the rotary shaft in the rotary shaft passage opening.
  • the spring element 6, which may be formed as a torsion spring, is first attached to the bearing dome 3 of the reset console 2. Subsequently, the reset console 2 is mounted on the first bearing unit 4; For this purpose, the bearing dome 3 is inserted into the first receiving opening 5 of the bearing unit 4.
  • a locking element radial passage slot 14 of the bearing dome 3 can be rotatably fixed in the manner of a clip connection to the return bracket 2.
  • the torsion spring which is supported by the first end portion 8 on the first stop 10 of the first bearing unit 4, and by means of the second end portion 9, which is supported on the second stop 12 of the return bracket 2, biased.
  • a radial extension 18 may be provided in the region of a second end face 17.
  • the radial extension 18 may in turn have a support portion 19, which in the in the FIG. 2 shown position of the return bracket 2 is supported on a provided on the first bearing unit 4 third stop 20.
  • the flap device By a suitable attachment of a flap device of an intake module of an internal combustion engine on the bearing dome 3 such that in the in FIG. 2 shown position of the reset console, the flap device closes a suction port of the intake module, it can be ensured that without providing an external torque to the reset console 2, the suction port is automatically closed.
  • the reset console 2 To open the flap, the reset console 2 by providing an external torque in one in the FIG. 2 be rotated with U direction.
  • the bearing dome 3 of the reset console 2 can be drive-connected, for example, with an electric motor or another suitable drive unit.
  • FIGS. 1 to 4 support the two axial ends of the spring element 6 in the assembled state on the first bearing unit 4 and on the second end face 17 of the return bracket 2, so that the spring element 6 at mounted reset console 2 is slightly compressed.
  • the return bracket 2 is mounted without clearance in the axial direction.
  • FIG. 5 is a variant of the reset unit 1 of FIGS. 1 to 4 represented, by means of which the restoring unit 1 in addition to the first bearing unit 4, a second bearing unit 21 which supplements the first bearing unit 4 to a bearing assembly 22.
  • the FIG. 5 shows the reset unit 1 while in a non-assembled state, the FIG. 6 in an assembled state, in which the spring element 6 biases the reset console 2 against the first bearing unit 4.
  • the explanations to the console bearing surface 25 and the stop 26 according to the FIGS. 1 to 4 Of course, apply also to the variant according to the FIGS. 4 and 5 ,
  • the first and second receiving opening 5, 23 may be formed as passage openings.
  • the reset console 2 with the bearing dome 3 between the two bearing units 4, 17 of the bearing assembly 22 is clamped.
  • a rotary shaft 24 can be plugged into the rotary shaft passage opening 16 either via the first end face 13 or via the second end face 17.
  • the flap of a flap device by means of which the flap device selectively opens or closes a suction opening of the suction module (not shown) can be fastened to the rotary shaft 24.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Supercharger (AREA)
EP14701103.5A 2013-01-24 2014-01-22 Rückstelleinheit, insbesondere für eine brennkraftmaschine Active EP2948661B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013201170.9A DE102013201170A1 (de) 2013-01-24 2013-01-24 Rückstelleinheit, insbesondere für eine Brennkraftmaschine
PCT/EP2014/051235 WO2014114667A1 (de) 2013-01-24 2014-01-22 Rückstelleinheit, insbesondere für eine brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP2948661A1 EP2948661A1 (de) 2015-12-02
EP2948661B1 true EP2948661B1 (de) 2016-12-28

Family

ID=49999974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14701103.5A Active EP2948661B1 (de) 2013-01-24 2014-01-22 Rückstelleinheit, insbesondere für eine brennkraftmaschine

Country Status (5)

Country Link
US (1) US9388734B2 (ja)
EP (1) EP2948661B1 (ja)
JP (1) JP5965555B2 (ja)
DE (1) DE102013201170A1 (ja)
WO (1) WO2014114667A1 (ja)

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FR3049673B1 (fr) * 2016-03-30 2018-11-23 Faurecia Systemes D'echappement Vanne de ligne d'echappement et procede de montage correspondant
JP7004638B2 (ja) * 2018-12-18 2022-01-21 株式会社デンソー スロットル装置、及び、スロットル装置の製造方法

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Also Published As

Publication number Publication date
JP5965555B2 (ja) 2016-08-10
DE102013201170A1 (de) 2014-07-24
WO2014114667A1 (de) 2014-07-31
US9388734B2 (en) 2016-07-12
JP2016504533A (ja) 2016-02-12
EP2948661A1 (de) 2015-12-02
US20150369121A1 (en) 2015-12-24

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